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RECEPTION DEVICE FOR OPTICAL SPACE COMMUNICATION, OPTICAL SPACE COMMUNICATION SYSTEM, AND METHOD FOR CONTROLLING OPTICAL SPACE COMMUNICATION DEVICE
RECEPTION DEVICE FOR OPTICAL SPACE COMMUNICATION, OPTICAL SPACE COMMUNICATION SYSTEM, AND METHOD FOR CONTROLLING OPTICAL SPACE COMMUNICATION DEVICE
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机译:用于光学空间通信的接收设备,光学空间通信系统以及用于控制光学空间通信设备的方法
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摘要
Tracking control of a light beam is achieved at high speed and with good precision, without requiring preparation of an optical system that causes high signal loss when coupling a reception light beam with an optical fiber. A reception device for optical space communication comprises: fibers having a plurality of propagation modes with spatially different characteristics; an optical coupling system for coupling the reception light beam to the fibers; and a mode separator that separates the coupled light into a plurality of propagation modes, the adjustment axes of the optical coupling system for coupling the reception light beam to one end of the fibers being controlled on the basis of the total coupling strength to all of the modes, and the priority of control of the axes being adjusted on the basis of information about the coupling strength ratio for each mode.
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